"lambda" is the 11^{th} letter of the Greek alphabet.

upper case form, Λ

lower case form, λ :

*λ*wavelength (physics)- λ symbol for Half-Life (game)
*λ*the mean of a Poisson distribution (sometimes in statistics)

"lambda" is the 11^{th} letter of the Greek alphabet.

upper case form, Λ

lower case form, λ :

*λ*wavelength (physics)- λ symbol for Half-Life (game)
*λ*the mean of a Poisson distribution (sometimes in statistics)